Hi,

On 17 Aug., 04:40, cageface <milese...@gmail.com> wrote:

> I'm not entirely sure how to interpret this. If a function is
> expecting a certain argument structure, isn't it always better to
> document that in a destructuring argument list? I'm finding that
> destructured signatures generally help me track my dataflow better.
> Can somebody elucidate this distinction a bit?

It can overspecify things. Consider private fields of a record. The
user should not fiddle with these, but you might well access them in
your function. That you do so should be not of interest to the caller.
Specifying it in the argument list would actually expose the caller to
the details. So the details become part of the contract and you cannot
change the internal workings of your library anymore.

Sincerely
Meikel

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